Marking device for watchmen&#39;s clocks.



Patented Dec. l0, I90l. A. NEWMAN. MARKING DEVICE FOR WATGHMENS CLOCKS.

(Application filed Apr. 15, 1901.)

I (No Model.)

W/TNESSESF UNITED STATES PATENT OFFICE.

ABRAHAM NEWMAN, OF CHICAGO, ILLINOIS.

MARKING DEVICE FOR WATCHMENS CLOCKS.

SPECIFICATION forming part of Letters Patent N 0. 688,326, datedDecember 10, 1901.

Application filed April 15, 1901. Serial No. 55,922. (No model.

To all whom it may concern.-

Be it known that I, ABRAHAM NEWMAN, a citizen of the United States ofAmerica, and a resident of Chicago, county of Cook, and State ofIllinois, have invented certain new and useful Improvements in MarkingDevices for Watchmens Olocks,of which the following is a specification.

My invention relates to marking devices for portable watchmens clocks,and has for its object improvement in such devices and their mode ofoperation. The kind of clock for which these devices are particularlyapplicable is illustrated in my pending application, Serial No. 739,764,filed December 9, 1899.

In the accompanying drawings, Figure 1 is a side elevation of akey-receiving box, together with the associated apparatus. Fig. 2 is aplan of the same, showing the key inserted in position. Fig. 3 is asection on line 3 30f Fig. 2. Fig. 4 is a perspective View of themarking end of a key.

In the said drawings, G represents a transverse plate supported adjacentto the clock mechanism in any convenient manner from the frame whichsupports the works of the clock.

P represents a paper dial, which is moved by the clock mechanismadjacent to one face of the plate 0. Secured to and supported on top ofthe plate 0 is a key-box G, formed of two upturned flanges, betweenwhich there is a slotted tube G. The keyopening is in one of theupturned flanges and is marked G2 in Fig. 1. Supported on the oppositeside of the plate 0 is a bracket M, to which is secured a matrix-plateM, the matrix characters of which are partly illustrated at M in Figs. 1and 3. Opposite the matrix characters in the plate M there is a slot 0through the plate 0, which gives communication from the key-box G to thematrix-plate M. The female characters which form the matrixplate arearranged in a row beneath the slot 0 and of a length about equal to thedistance between the two upturned ends of the keybox G. Thecorresponding male characters are formed on a series of keys K, one ofwhich is illustrated in the drawings. The key-stem K has on it a flangeL, the outer portion of which is bent around to nearly a right angle, asshown at L. On the edge or face of this lip L, I form a series ofcharacters which match the characters in the matrix-plate M. I then cutaway from the lip L all characters but one of them, which is shown at LOf a series of keys the first key would have a character located at oneend of the lip L, the second key would have only the second characterlocated a short distance from the end, and so on down through the entireseries of characters that were originally formed on the key andwhich arethe corresponding characters to thosein the matrix-plate M. The key-stemK fits into the slotted tube G, and the said tube is arranged so thatthe key may be turned a short distance, the result of which is to bringthe character on the key into conjunction with the correspondingcharacter in the matrix-plate. If there be between the key and thematrix-plate a paper dial (illustrated by P) at the time the twocharacters are brought together, this character will be marked orembossed upon the dial P. Adjacent to the key-box G is a post S, on thetop of which is secured a spring S, that projects close to the lip L ofthe key when it is inserted in the keyboX. Secured to the lip L is asmall projection or rivet-head L so arranged that after inserting thekey in the key-box turning the key will cause the projection L to engagethe spring S and deflect it, as shown in Fig. 3. The length of thespring S and the length of the projection L are such that the spring Sslips off of the projection immediately before the character on the keyreaches the position where it will mark the paper dial P. The result ofthis action is that in slipping 0d of the spring S the force applied tothe key to overcome the resistance of the spring S is sufficient tocause the proper embossing of the dial P. In other words, I make thespring S of a resistance corresponding to the pressure required toproperly mark the dial and then cause the spring to release the keyimmediately preceding the actual marking. By this means the person whoinserts and turns the key will know when he has pressed the key into thematrix-plate with sufficient force to mark the dial P. As the characterson the lip L are at different places in diiferent keys, it is desirableto have the key supported and guided on its stem through the length ofthe space in which such characters occur. This result is accomplished bymaking the tube G a bearing for the stem of the key K through the entirelength which the flange L occupies.

What I claim is- 1. The combination with a dial or sheet to be markedand a key provided with an indicating character for marking it, of adevice engaged by said key, said device being arranged to resist themovement of the key by a force equivalent to that necessary to properlymark said sheet and to release said key from such resisting force whenthe key has been moved to a position immediately adjacent to the sheetto be marked.

2. The combination with a dial or sheet to be marked and a key providedwith an indicating character for marking it, of a key-receiving box intowhich said key is inserted and by which it is guided for such marking,and a spring arranged to resist the move ment of said key toward itsmarking position and to release such resistance at the latter part ofsuchvmovement.

Signed at Chicago, Illinois, this'13th day of April, 1901. 1

ABRAHAM NEWMAN.

Witnesses:

EMILY NEWMAN, O. L. REDFIELD.

